UKW1H4R7MDD

The UKW1H4R7MDD is a Nichicon UKW series aluminum electrolytic capacitor in a radial-lead can optimized for audio and AV applications. It provides 4.7 µF capacitance at a 50 V rating in a compact φ5 × 11 mm package with 2 mm lead spacing.

Designed for through-hole assembly, this polar capacitor emphasizes low loss in audio circuits, defined ripple handling at low and high frequencies, and a documented endurance of 2000 hours at 85 °C for reliability planning.

Key Features

• Capacitance & Voltage — 4.7 µF rated capacitance with 50 V rated voltage and ±20% tolerance (120 Hz, 20 °C).
• Audio-oriented dielectric performance — Specified tanδ of 0.12 at 20 °C and 120 Hz, supporting low-loss behavior suitable for audio/AV applications and the UKW series’ stated goal of a harmonious balance of sound quality.
• Ripple current handling — Rated for 40 mA at 120 Hz (low frequency) and 80 mA at 10 kHz (high frequency), with frequency coefficients defined by the series datasheet for sizing ripple capability across common audio frequencies.
• Leakage current — Low leakage current specified at 7.05 µA (measured conditions per product data), supporting stable bias performance in DC-coupled circuits.
• Endurance & temperature — Specified lifetime of 2000 hours at 85 °C; operating temperature range −40 °C to +85 °C and endurance requirements (capacitance change within ±20% and controlled tanδ/leakage behavior after endurance test) are defined in the series documentation.
• Compact radial package — φ5 × 11 mm can with 2 mm lead spacing in a radial-lead configuration; supplied in bulk/bag packing without terminal forming for through-hole assembly processes.
• Compliance — RoHS compliant as indicated in the product data.

Typical Applications

• Audio and AV equipment — Suited for audio circuits and AV components where the UKW series’ electrolyte formulation is intended to support a harmonious balance of sound quality.
• Power filtering in audio systems — Compact radial package and defined ripple current ratings make it suitable for decoupling and local power filtering within audio modules and small amplifier stages.
• Through-hole consumer electronics — Use in board-level designs that require a small, polar aluminum electrolytic capacitor with clear endurance and leakage specifications for supply stabilization.

Unique Advantages

• Audio-focused materials — Part of the UKW series developed with an electrolyte aimed at achieving a harmonious balance of sound quality, supporting audio-focused design choices.
• Low-loss behavior — Measured tanδ of 0.12 at 120 Hz/20 °C indicates controlled dissipation for clearer audio performance compared with higher-loss parts.
• Frequency-aware ripple ratings — Separate ripple current specifications for low and high frequencies (40 mA at 120 Hz, 80 mA at 10 kHz) allow designers to evaluate performance across audio and switching environments.
• Documented endurance — 2000 hours at 85 °C with defined post-test limits for capacitance, tanδ and leakage current supports engineering verification and lifecycle planning.
• Compact, through-hole form factor — Small φ5 × 11 mm can and 2 mm lead spacing simplify replacement or retrofit into existing through-hole audio PCBs.
• Transparent lifecycle status — Listed as End of Life in the product data, enabling advance planning for redesign, inventory management, or alternative sourcing.

Why Choose UKW1H4R7MDD?

The UKW1H4R7MDD combines a compact radial aluminum electrolytic package with audio-oriented electrolyte characteristics, quantified low-loss performance, and clear endurance specifications. It is positioned for engineers building or maintaining audio and AV equipment who require measurable performance (tanδ, ripple current, leakage) and documented lifecycle information.

This part is appropriate for designs that need a small, polarized electrolytic capacitor for power filtering or signal-chain support in through-hole assemblies, with RoHS compliance and manufacturer-specified endurance data to inform reliability planning.

Request a quote or submit an inquiry to the manufacturer for pricing and availability, lead times, and to discuss stocking or replacement options given the part’s End of Life status.